In this Unreal Engine tutorial we'll apply design principles of replayability, structured unpredictability and rapid iteration in creating a Blueprint system that can populate game levels of any size with randomly located interactive player objects (pickups).We'll also exploit the usefulness of arrays and actor classes to organize our system within a placeable actor class that can be quickly and easily modified to suit the needs of many kinds of games.By the end of this Unreal Engine training you'll understand the value of creating a system that will save you work in building your game, allowing you to more quickly begin a phase of development where you can finely tune the player experience.